11620240 has 20 divisors (see below), whose sum is σ = 27017244. Its totient is φ = 4648064.

The previous prime is 11620211. The next prime is 11620243. The reversal of 11620240 is 4202611.

It can be written as a sum of positive squares in 2 ways, for example, as 3936256 + 7683984 = 1984^2 + 2772^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a Harshad number since it is a multiple of its sum of digits (16).

It is not an unprimeable number, because it can be changed into a prime (11620243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72547 + ... + 72706.

Almost surely, 2^11620240 is an apocalyptic number.

11620240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11620240 is an abundant number, since it is smaller than the sum of its proper divisors (15397004).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11620240 is a wasteful number, since it uses less digits than its factorization.

11620240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145266 (or 145260 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 11620240 is about 3408.8473125090. The cubic root of 11620240 is about 226.5018217053.

Adding to 11620240 its reverse (4202611), we get a palindrome (15822851).

The spelling of 11620240 in words is "eleven million, six hundred twenty thousand, two hundred forty".